Ok I think I got it. I'm not using "active" vt, I always put it on vt7. I'm not too sure where plymouth is running but it might be on vt7, which means they'll both compete for the display and, as I don't chose to run on "active" vt, it'll be only deactivated and not quitted, which doesn't seem enough.
Running only plymouth (no lightdm) and then running: plymouth deactivate X vt7 leads to X not starting because of the non returning ioctl. I guess that quitting plymouth unconditionally would work, no idea if that's a problem in the general case though. As far as we (Debian) are concerned, we quit plymouth anyway so it shouldn't break anything. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/799069 Title: xf86OpenConsole: setpgid failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/799069/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs